Question

What is the simplified form of the following expression? 10yz/ -2z

A) -5yz
B) -5y
C) -5yz^2
D) 5y

Answer 1

-5Y , as Z/Z=1 , 10/-2 =-5

Answer 2

B) -5y

Explanation:

Given expression,

`(10yz)/(-2z)`

`=(-5yz)/(z)`

`=-5yzz^(-1)`
`(\because (1)/(a^m)=a^(-m))`

`=-5yz^(1-1)`
`(\because a^m.a^n=a^(m+n))`

`=-5yz^0`

`=-5y`

Since, further simplification is not possible.

Hence, option 'B' is correct.